Re dig on John Michalski.
Michalski was often accused of nebulous wrongdoing by shady accusers. I don't trust Michalski's accusers. That does not prove Michalski was a paragon of virtue. Maybe he was a good guy, maybe not. He may well have been a small-time "white hat" wanna-be who could have caused problems for big-time "black hats."
Digging on police corruption in Buffalo is likely to be laborious. I suspect that Michalski's suicide is irrelevant to the suicides mentioned by Q but if you want to dig, go ahead.